is fixed, does not move under the medium pressure. trunnion ball valve has floating seats, the seats move with the medium pressure to tight the ball and seal ring to ensure sealing reliability. the trunnion mounted ball valves are widely used in high pressure conditions and the size can be up to inches...
business since , we are borewell drilling contractors providing services like - ground water ... more.. pumps and spares borewell drilling equipments,accessories and contractors boring equipments and accessories more.. view details d k sales corporation sadashiv peth, pune we deal in pipes and fittings, valves...